package demo509;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class Test {
    public static void main(String[] args) throws IOException {
        String date ="今天是周五";
        FileOutputStream fileOutputStream=new FileOutputStream("1.txt");
        byte[] bytes=date.getBytes();
        fileOutputStream.write(bytes);

        FileInputStream fis=new FileInputStream("1.txt");
        byte[] buffer=new byte[1024];
        int bytesResd;
        StringBuilder content= new StringBuilder();
        while ((bytesResd =fis.read(buffer))  != -1){
            content.append(new String(buffer, 0,bytesResd));
        }
    }
}
